REBUTIA. 
47 
Illustrations: Bltihende Kakteen 2: pi. 109; Monatssehr. Kakteenk. 28: 139, as Echi- 
nocactus fiebrigii. 
Figure 59 is copied from the first illustration above cited. 
3 . Rebutia pseudominuscula (Spegazzini). 
Echinopsis pseudominuscula Spegazzini, Anal. Mus. Nac. Buenos Aires III. 4: 488. 1905. 
Simple or somewhat cespitose, globular to short-cylindric, 5 cm. high, 3.5 cm. in diameter, 
strongly tubercled; the tubercles about 5 mm. high; areoles elliptic, gray-felted; radial spines 7 to 14, 
setaceous, 3 to 5 mm. long, at first yellowish or rose-colored; central spines 1 to 4; flowers from the 
lower half of the plant, red, 2.5 cm. long, with a slender funnelform tube; scales on ovary and flower- 
tube few, the axils hairy; perianth-segments oblanceolate to spatulate, 15 to 18 mm. long, obtuse, 
sometimes mucronate; stigma-lobes 6, white. 
Type locality: Mountains, 3,500 meters altitude, province of Salta, Argentina. 
Distribution: Known only from the type locality. 
Echinocactus pseudominusculus Spegazzini (Anal. Mus. Nac. Buenos Aires III. 4: 
488. 1905) was given as a synonym of this species when first described. 
Figure 58 is from a photograph contributed by Dr. Spegazzini. 
Fig. 60. — Rebutia pygmaea. 
1 
Fig. 60 a . — Plant and section of stem of Rebutia steinmannii. 
4 . Rebutia pygmaea (R. E. Fries). 
Echinopsis pygmaea R. E. Fries, Nov. Act. Soc. Sci. Upsal. IV. I 1 : 120. 1905. 
Simple, ovoid to short-cylindric, 1 to 3 cm. long, 1.2 to 2 cm. in diameter, or sometimes branched 
with 2 to many short joints from a much thickened root; tubercles small, more or less arranged into 
8 to 12 spiraled rows; areoles narrow, somewhat lanate; spines all radial, 9 to 11, short, appressed, 
2 to 3 mm. long, acicular, somewhat swollen at base; flowers from the lower part of the plant, some¬ 
what curved at base, becoming nearly erect, 18 to 25 mm. long, rose-purple; scales on ovary and 
flower-tube small, hairy in their axils; fruit globular, 6 mm. in diameter. 
Type locality: Yavi, province of Jujuy, Argentina. 
Distribution: Bolivia and northwestern Argentina. 
We have studied living plants collected by Dr. Rose at Oruro, Bolivia. 
Illustrations: Nov. Act. Soc. Sci. Upsal. IV. i 1 : pi. 8, f. 1 to 3, as Echinopsis pygmaea. 
Figure 60 is copied from the illustration above cited. 
5. Rebutia steinmannii (Solms-Laubach). 
Echinocactus steinmannii Solms-Laubach, Bot. Zeit. 65*: 133. 1907 - 
Small oblong plants (about 2 cm. high) 1 to 1.5 cm. in diameter; ribs low, often spiraled, 
tubercled; spines acicular, about 8; flowers from the side of the plant, erect, campanulate; outer 
perianth-segments oblong, apiculate; inner perianth-segments rounded. 
